WASHINGTON (AP) — President Joe Biden asked Congress on Thursday for an additional $33 billion to help Ukraine fend off Russia's invasion, a signal that the U.S. is prepared to mount a robust, long-term campaign to bolster Kyiv and weaken Moscow as the bloody war enters its third month with no sign of abating. Biden’s latest proposal — which the White House said was expected to support Ukraine's needs for five months — has more than $20 billion in military assistance for Kyiv and for shoring up defenses in nearby countries. There is also $8.5 billion in economic aid to...